点阵屏用74HC154替换138程序怎么改 -

标题: 点阵屏用74HC154替换138程序怎么改 [打印本页]

作者: jwn11 时间: 2018-5-16 22:38
标题: 点阵屏用74HC154替换138程序怎么改
#include<reg51.h>//头文件

sbit shcp=P1^2;//数据输入时钟线 595的11脚
sbit stcp=P1^1;//输出存储器锁存时钟线 595的12脚
sbit ds=P1^0;//数据线  595的14脚

sbit s1=P3^1;//按下暂停再暂按继续
sbit s2=P3^2;//按下方向取反
bit fx;//方向切换
unsigned char alt;//数据移动定时时间
unsigned int net;//控制显示的字符
unsigned char zi=8;
unsigned int zong;//总字符  （所有的字数+1）*32 字数指的是汉字，字母、数字两个算一个数字
unsigned char code tab[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*先送两个空字节用于缓冲*/
//老(0) 师(1) ，(2) 您(3) 辛(4) 苦(5) 了(6) ！(7)

0x04,0x08,0x04,0x10,0x24,0x20,0x24,0x40,0x24,0xFC,0x24,0xA2,0xFD,0x22,0x26,0x22,
0x24,0x42,0x2C,0x42,0x14,0x42,0x24,0x82,0x44,0x1E,0x04,0x00,0x04,0x00,0x00,0x00,/*"老",0*/

0x00,0x00,0x3F,0xE1,0x00,0x02,0x00,0x0C,0xFF,0xF0,0x00,0x00,0x40,0x00,0x47,0xF8,
0x44,0x00,0x44,0x00,0x7F,0xFF,0x44,0x10,0x44,0x08,0x47,0xF0,0x40,0x00,0x00,0x00,/*"师",1*/

0x00,0x00,0x00,0x00,0x00,0x1A,0x00,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"，",2*/

0x04,0x02,0x08,0x0C,0x10,0x00,0x3F,0xEE,0xC4,0x01,0x08,0x81,0x11,0x11,0xE6,0x4D,
0x20,0x21,0x2F,0xC1,0x20,0x01,0x24,0x07,0x2A,0x00,0x31,0x88,0x00,0x06,0x00,0x00,/*"您",3*/

0x02,0x00,0x02,0x20,0x22,0x20,0x22,0x20,0x2A,0x20,0x26,0x20,0xA2,0x20,0x63,0xFF,
0x22,0x20,0x26,0x20,0x2A,0x20,0x22,0x20,0x22,0x20,0x02,0x20,0x02,0x00,0x00,0x00,/*"辛",4*/

0x21,0x00,0x21,0x00,0x21,0x00,0x21,0x3F,0xF9,0x22,0x21,0x22,0x21,0x22,0x2F,0xE2,
0x21,0x22,0x21,0x22,0xF9,0x22,0x21,0x3F,0x21,0x00,0x21,0x00,0x21,0x00,0x00,0x00,/*"苦",5*/

0x00,0x00,0x40,0x00,0x40,0x00,0x40,0x00,0x40,0x00,0x40,0x02,0x40,0x01,0x47,0xFE,
0x44,0x00,0x48,0x00,0x50,0x00,0x60,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"了",6*/

0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0xCC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"！",7*/

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
unsigned char code tab1[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//老(0) 师(1) ，(2) 您(3) 辛(4) 苦(5) 了(6) ！(7)
0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0xCC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"！",7*/
0x00,0x00,0x40,0x00,0x40,0x00,0x40,0x00,0x40,0x00,0x40,0x02,0x40,0x01,0x47,0xFE,
0x44,0x00,0x48,0x00,0x50,0x00,0x60,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"了",6*/
0x21,0x00,0x21,0x00,0x21,0x00,0x21,0x3F,0xF9,0x22,0x21,0x22,0x21,0x22,0x2F,0xE2,
0x21,0x22,0x21,0x22,0xF9,0x22,0x21,0x3F,0x21,0x00,0x21,0x00,0x21,0x00,0x00,0x00,/*"苦",5*/
0x02,0x00,0x02,0x20,0x22,0x20,0x22,0x20,0x2A,0x20,0x26,0x20,0xA2,0x20,0x63,0xFF,
0x22,0x20,0x26,0x20,0x2A,0x20,0x22,0x20,0x22,0x20,0x02,0x20,0x02,0x00,0x00,0x00,/*"辛",4*/
0x04,0x02,0x08,0x0C,0x10,0x00,0x3F,0xEE,0xC4,0x01,0x08,0x81,0x11,0x11,0xE6,0x4D,
0x20,0x21,0x2F,0xC1,0x20,0x01,0x24,0x07,0x2A,0x00,0x31,0x88,0x00,0x06,0x00,0x00,/*"您",3*/
0x00,0x00,0x00,0x00,0x00,0x1A,0x00,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"，",2*/
0x00,0x00,0x3F,0xE1,0x00,0x02,0x00,0x0C,0xFF,0xF0,0x00,0x00,0x40,0x00,0x47,0xF8,
0x44,0x00,0x44,0x00,0x7F,0xFF,0x44,0x10,0x44,0x08,0x47,0xF0,0x40,0x00,0x00,0x00,/*"师",1*/
0x04,0x08,0x04,0x10,0x24,0x20,0x24,0x40,0x24,0xFC,0x24,0xA2,0xFD,0x22,0x26,0x22,
0x24,0x42,0x2C,0x42,0x14,0x42,0x24,0x82,0x44,0x1E,0x04,0x00,0x04,0x00,0x00,0x00,/*"老",0*/

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
void delay(unsigned int z)//延时子函数
{
unsigned char x;
for(;z>0;z--)
for(x=110;x>0;x--);
}
void writedata(unsigned char dat1,unsigned char dat2)    //595显示子函数
{
unsigned char i;
//CY存储移位之后的数据  CY进位标志位，单片机内部的寄存器移位之后的数据就存在CY里面
for(i=0;i<8;i++)//循环八次
{
dat1=dat1<<1;//数据左移11110001
ds=CY;//数据发送
shcp=1;//上升沿发生移位上升沿时数据寄存器的数据锁存。
shcp=0;
}
for(i=0;i<8;i++)//循环八次
{
dat2=dat2<<1;//数据左移
ds=CY;//数据发送
shcp=1;//上升沿发生移位上升沿时数据寄存器的数据锁存　。
shcp=0;
}
stcp=0;
stcp=1;//上升沿将数据送到输出锁存器
stcp=0;
}

void main()    //主函数
{
char i,aa;
TMOD=0x01;//定时器0  模式1  16位定时模式
TH0=(65536-10000)/256;//定时10.000ms
TL0=(65536-10000)%256;
ET0=1;//使能定时器0
EA=1;//开启总中断
TR0=1;//开始计数
zong=(zi+1)*32;
while(1)    //无限循环
{
if(s1==0)//检测按键
{
delay(30);//延时消除按键抖动
if(s1==0)
{
TR0=~TR0;//按下暂停  暂按继续
while(s1==0);//等待按键松手
}
}
if(s2==0)//检测按键
{
delay(30);//延时消除按键抖动
if(s2==0)
{
fx=~fx;//方向取反
aa=0;
if(fx==0)net=0;//正向移动
if(fx==1)net=zong;//反向移动
while(s2==0);//等待按键松手
}
}
for(i=0;i<16;i++)//循环移位
{
//两片138组成的4-16线译码器
P2=i;//列数据驱动，138的驱动端口
if(fx==0)writedata(tab[net+aa],tab[net+aa+1]);//写入需要显示的数据
if(fx==1)writedata(tab1[net+aa],tab1[net+aa+1]);//写入需要显示的数据
delay(3);//延时
writedata(0,0);//清屏
aa+=2;//数据加实现扫描
if(aa>30)aa=0;//循环16次清零
}
}
}

void timer0() interrupt 1
{
TH0=(65536-10000)/256;//10.000ms 进入一次中断
TL0=(65536-10000)%256;
alt++;
if(alt==10)//到100.000ms时间加以实现移动用于控制移动速度
{
alt=0;
if(fx==0)//正向移动
{
net=net+2; //每次送两个编码数据
if(net>zong)//达到总字符
net=0;//数据清零
}
else//否则反向移动
{
net=net-2;//每次送两个编码数据
if(net<2)//数据完毕
net=zong;//回到总字符
}
}
}

作者: jwn11 时间: 2018-5-16 22:41
原理图

好多原理图.docx

211.4 KB, 下载次数: 22

原理图在Word里

作者: amberchao 时间: 2018-5-17 23:57
两片138级联实现的功能和154是一样的，都是4-16译码，4线输入16线输出控制LED的16列，想一想很好改的

作者: weidoit 时间: 2018-5-18 10:26
软件不需要改，注意硬件连接的改变，片选使能信号电平等。

作者: jwn11 时间: 2018-5-22 14:58

amberchao 发表于 2018-5-17 23:57
两片138级联实现的功能和154是一样的，都是4-16译码，4线输入16线输出控制LED的16列，想一想很好改的

哎想不明白

作者: jwn11 时间: 2018-5-22 14:59

weidoit 发表于 2018-5-18 10:26
软件不需要改，注意硬件连接的改变，片选使能信号电平等。

修改了用proteus仿真然后就能看见数据传不过去不知道是哪里错了

作者: zl2168 时间: 2018-5-22 21:42
本帖最后由 zl2168 于 2018-5-22 21:47 编辑

实例66 LED 16×16点阵扫描显示汉字

⒈ 电路设计…

说明：用一片154（4-16译码器）代替2片138（3-8译码器），性价比更高。对LED显示来说，164比595性价比更高（都是串入并出移位寄存器，164控制更简单）

⒉ 汉字编码…

⑴ 汉字编码概述…

⑵ 汉字点阵显示代码…

⑶ 汉字点阵取模软件…

⒊ 程序设计…

⒋ Keil调试…

⒌ Proteus仿真…

实例66a LED 16×16点阵汉字显示.rar (48.21 KB, 下载次数: 14)

作者: jwn11 时间: 2018-5-23 09:56

zl2168 发表于 2018-5-22 21:42
实例66 LED 16×16点阵扫描显示汉字
⒈ 电路设计…

谢谢大佬

作者: kissme 时间: 2019-1-7 20:55

amberchao 发表于 2018-5-17 23:57
两片138级联实现的功能和154是一样的，都是4-16译码，4线输入16线输出控制LED的16列，想一想很好改的

154的A,B,C,D四个引脚那个是串行输入哪个是时钟呢

作者: 兰州hsd 时间: 2019-5-14 17:41
你好，请问你的138调试合适了没，我的正好和你的相反154程序要变为138程序

欢迎光临 (http://www.51hei.com/bbs/)